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PsoriasisPhase 1NCT05504317

A Study of AK111 in Subjects With Moderate-to-severe Plaque Psoriasis

A Phase 1 study testing AK111 in people with Psoriasis, run by Akeso at 2 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a Phase Ib clinical study of multiple dose escalation of AK111 in subjects with moderate-to-severe plaque psoriasis Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Psoriasis
What is being tested?
AK111
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
48 participants
Where
2 sitesChina
Study dates
28 May 2020to 2 Mar 2021
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Moderate to severe plaque-type psoriasis diagnosed for at least 6 months;
  • Subjects with moderate-to-severe plaque psoriasis at baseline, who were defined as follows: Body Surface Area (BSA) ≥ 10%, PASI ≥ 12 and SPGA score ≥ 3;
  • Subjects with a history of systemic therapy or phototherapy for psoriasis at least once before, or suitable to receive systemic therapy or phototherapy for psoriasis assessed by investigator;
  • Women of childbearing age is not pregnant or lactating, and the subjects and their partners voluntarily take contraceptive measures considered effective by the investigator during the treatment period and at least 6 months after the last receipt of the study drug.

Who cannot join

  • Forms of psoriasis other than chronic plaque-type psoriasis;
  • History or evidence of active/latent tuberculosis;
  • Positive results of confirmatory serology test for hepatitis B, hepatitis C,HIV or syphilis at screening;
  • History of serious infection within 2 months before screening;
  • History of malignancy of any organ system;
  • Inadequate washout period for prior psoriatic therapy;
  • Previous use of secukinumab, ixekizumab or any other drug that targets IL-17 or IL-17 receptor;
  • Any medical conditions, in the opinion of the investigator, would place the subject at risk, interfere with study participation or study results interpretation.

Trial locations and contacts

2 sites in 1 country.

China2 sites
  • AkesoBio Investigative Site 1001

    Beijing

  • AkesoBio Investigative Site 1002

    Bengbu, Anhui

Other trials in China

About this study

Official title: A Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of AK111 in Subjects With Moderate-to-severe Plaque Psoriasis

This is a Phase Ib clinical study of multiple dose escalation of AK111 in subjects with moderate-to-severe plaque psoriasis

Read the detailed description

This is a randomized, double-blind, placebo-controlled phase Ib clinical study. This study aims to determine the safety, tolerance, pharmacokinetics(PK) and Pharmacodynamics (PD) characteristics, immunogenicity and preliminary clinical efficacy of multiple dose escalation administration of AK111 in subjects with moderate-to-severe plaque psoriasis..

Conditions
Psoriasis
Being tested
AK111, Placebo
Medical subject headings
Psoriasis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AK111Drug

    Subjects will receive one of four escalated doses of AK111 (75mg/150mg/300mg/450mg) injection subcutaneously.

  • PlaceboDrug

    Subjects will receive corresponding dose of placebo injection subcutaneously.

Study groups in NCT05504317
Study groupRoleWhat they receive
AK111 regimenExperimentalNot described
Receives: Drug: AK111
PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Assessment of Safety

    Incidence of treatment emergent adverse events (TEAE), serious adverse events (SAE).

    Measured: Baseline till Week 20

  2. PK evaluation: T1/2

    Assessment of elimination half-life (T1/2) after AK111 administration.

    Measured: Baseline till week 20

  3. PK evaluation: AUC

    Assessment of area under curve (AUC) after AK111 administration.

    Measured: Baseline till week 20

  4. PK evaluation: Cmax

    Assessment of maximum plasma concentration (Cmax) after AK111 administration.

    Measured: Baseline till week 20

  5. PK evaluation: Tmax

    Assessment of time to maximum plasma concentration (Tmax) after AK111 administration.

    Measured: Baseline till week 20

Secondary outcomes (5)
  1. PASI 75

    Proportion of subjects who achieve Psoriasis Area and Severity Index (PASI) 75 response which means whose PASI score decrease at least 75 percent compared with baseline at week 12.

    PASI is a measure of overall psoriasis severity and coverage. The PASI score is in the range of 0 (no psoriasis on the body) to 72 (the most severe case of psoriasis).

    Measured: At week 12

  2. PASI 90

    Proportion of subjects who achieve PASI 90 response which means whose PASI score decrease at least 90 percent compared with baseline at week 12.

    PASI is a measure of overall psoriasis severity and coverage. The PASI score is in the range of 0 (no psoriasis on the body) to 72 (the most severe case of psoriasis).

    Measured: At week 12

  3. PASI 100

    Proportion of subjects who achieve PASI 100 response which means whose PASI score decrease 100 percent compared with baseline at week 12.

    PASI is a measure of overall psoriasis severity and coverage. The PASI score is in the range of 0 (no psoriasis on the body) to 72 (the most severe case of psoriasis).

    Measured: At week 12

  4. sPGA 0/1

    Proportion of subjects who achieve Static Physicians Global Assessment (sPGA) 0/1 which means whose sPGA score is clear or almost-clear at week 12.

    The sPGA is a measure of global assessment of the patient's overall severity, which could be converted to numerals ranging from 0 to 5 (clear = 0, almost-clear = 1, mild = 2, moderate = 3, marked = 4, and severe = 5).

    Measured: At week 12

  5. Immunogenicity

    Proportion of subjects with detectable anti-drug antibody (ADA).

    Measured: Baseline till week 20

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Aug 2022
  2. Study start28 May 2020
  3. Primary completion2 Mar 2021
  4. Study completion2 Mar 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
48 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05504317
Sponsor's protocol ID
AK111-102
Status last verified
Mar 2025
First submitted
29 Jun 2022
Last updated
5 Mar 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Jiang C, Zhou H, Zhang W, Xia Y, Li B, Ni X, Wang G, Zhang W, Chen B, He Z, Zhang M, Chen R, Jin H, Deng L. Efficacy, Safety and Pharmacokinetics of IL-17 Monoclonal Antibody Injection (AK111) in Patients with Moderate-to-Severe Plaque Psoriasis: A Randomized, Double-Blinded, Placebo-Controlled Phase Ib Multidose Escalation Clinical Study. Dermatol Ther (Heidelb). 2023 Feb;13(2):555-567. doi: 10.1007/s13555-022-00880-1. Epub 2022 Dec 24.

    PubMed 36566344

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing AK111 in people with Psoriasis, run by Akeso at 2 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Assessment of Safety (time frame: Baseline till Week 20). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05504317, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Mar 2025.

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